Universal Nutrition Animal Stak

Animal Stak is designed to boost your hormone levels and according to the advertising, if you want to get jacked, you need this supplement! Animal Stak contains herbal ingredients to increase testosterone and human growth hormone levels while at the same time will suppress female hormone oestrogen. Is this a good idea for health? And will Animal Stak deliver what it claims? We find out.

Animal Stak is part of the Animal brand of supplements from Universal Nutrition. This well established company based in New Brunswick, New Jersey, and founded in 1977 is well known for some pretty hard-edged bodybuilder supplements. The Animal brand first came onto the market in 1983.

Universal Nutrition Animal Stak Pros

  • Some positive feedback
  • Covered by a guarantee
  • May help exercise performance

Universal Nutrition Animal Stak Cons

  • Several pills to take every day
  • Unlikely to be effective
  • May cause side effects
  • Created for long-term use
Watchdog Rejected Muscle

Universal Nutrition Animal Stak


What You Need To Know About Universal Nutrition Animal Stak

Universal Nutrition Animal Stak is literally a stack of eight supplements in pill form which you take together each day. Including vitamins, Animal Stak contains 27 ingredients in total and the claims are that it will increase testosterone and growth hormone levels and improve work out performance.

There is some positive customer feedback but it is important to remember that the research into the ingredients is not definitive and messing with your hormones could cause long-term health issues. That said the supposed hormone boosting effects are probably over exaggerated so it is unlikely to work as described.

What Are The Side Effects Of Universal Nutrition Animal Stak?

Side effects do not seem to be an issue with most people but may include stomach upset, diarrhoea, vomiting, nausea, bloating, changes to blood sugar levels, increase in urination, allergic reactions, increase in acne conditions.

How Much Does Universal Nutrition Animal Stak Cost?

If you buy Universal Nutrition Animal Stak from the official website, it costs $65.50 for one month’s supply. This comprises of 21 packs for 3 weeks supply after which you cycle off for one week rest before buying another pack and starting again.

If you buy from the official website, you are entitled you to a lifetime guarantee if you are dissatisfied.

However it is much cheaper if you buy from Amazon where it is on sale for $34.86.

It is important to remember that you are still covered by a 30-day guarantee if you buy from a retailer such as Amazon so it seems like the better option.

Our Verdict On Universal Nutrition Animal Stak

Universal Nutrition Animal Stak is an unusual product in that it provides an easy to take ready-made stack of pills that you take each day. It is supposed to increase testosterone levels and there is some evidence that some of the ingredients may have this effect, but research is mainly inconclusive and based on animal experimentation. We have found zero evidence that it will improve growth hormone levels as claimed. We think it is unlikely that you will notice much effect from the supposed oestrogen suppressing function. In our opinion this is probably just as well. Messing with your hormones can be dangerous for long-term health and lead to issues such as prostate and breast cancer.

That said, Animal Stak may help boost your work out regime. Some of the ingredients are known to increase nitric oxide so improves muscle performance. Side effects don’t seem to be an issue with most customers either which is a good point. However in our opinion this supplement stack is all a bit over complicated and unproven and unlikely to work in the way as described.

Universal Nutrition Animal Stak Review

Animal Stak is described as a natural hormone booster. The idea is that you take this supplement and it will naturally increase your testosterone and human growth hormones. At the same time it is supposed to suppress the female hormone oestrogen as well as help your recovery post training.

Although the tub packaging looks as if it should contain a powder, in fact the supplement is delivered in strip packs which contain multiple pills which you take daily. Each pack contains 8 pills so you have really got to like taking tablets to succeed with this product.

Universal Nutrition Animal Stak Facts

  • Each serving is made up of 8 different pills.
  • Covered by a guarantee even if you buy from an independent retailer.
  • Animal is a brand name from the Universal Nutrition company.

First up there are four vitamin/mineral tablets; vitamin D, Vitamin B6, Magnesium and Zinc.

Then there is one capsule for the Pro Testosterone Complex which contains natural chemicals called steroidal saponins present in natural plants such as Eurycoma Longifolia and Fenugreek seed and believed to have T-boosting effect.

There is Growth Hormone Support which contains Arginine complex – a formula based on amino acid L Arginine plus other substances including the grisly sounding beef serum albumin complex.

How to Take Universal Nutrition Animal Stak

Take a single pack daily for 21 straight days. On training days take 30-45 minutes before lifting; on non-training days take prior to bed.

For best results cycle this product following a schedule of three weeks on and one week off.

Another capsule and another formula is titled the Aromatase Combating Complex – which simply means suppresses oestrogen although this is never fully explained.

You have a Hormone Amplifying Blend, presumably to increase the effects of the supplement and the hormones.

The final 8th tablet is the Restorative Support Complex which contains ingredients to help you feel generally better such as Ashwaganda which is considered an adaptogen plus ingredients such as Milk Thistle and Astralagus Root. Again all these are ingredients commonly used in T-boosting supplements aimed at bodybuilders.

Universal Nutrition Animal Stak Concerns:

  • Could cause side effects, especially if you stay on this supplement long term.
  • Is trying to mess with your hormones sensible for long-term health?
  • Results could be unpredictable. These ingredients are under researched and safety could be an issue.

Animal is a well-known brand from Universal Nutrition. Both the brand and the parent company are specialists in nutritional supplements for bodybuilders. Animal supplements are aimed specifically at this hardcore niche of mainly male users and in many cases safety is of concern.

Although this is a perfectly legal and popular-looking company don’t be fooled into thinking their supplements are safe. For many bodybuilders, safety is not an issue and often it seems that the more dangerous a supplement is, the more they like it!

We have covered Animal supplements in previous reviews including Animal Cuts which we found was associated with causing numerous side effects:


What Does Universal Nutrition Animal Stak Claim To Do?

Universal Nutrition explains why hormones are important:

Get Jacked! The hormonal edge is what separates the lifting elite from the rest of the gym culture. Testosterone and Growth Hormone (GH) production are crucial in an iron athlete’s ability to grow new muscle, and to add size and strength…

There are five key features:

POWERFUL PATENTED INGREDIENTS – Animal Stak is formulated with the most powerful patented ingredients to maximise effectiveness and give you the most powerful and shredded gains in an all-natural and legal formula.

HORMONE AMPLIFYING BLEND – Featuring the proven ingredients AgmaPure™, GlycoCarn®, and AstaPure®, Animal Stak delivers an unrivalled hormone complex that blasts through strength gain and physique plateaus.

PRO TESTOSTERONE COMPLEX – Animal Stak boasts a pro-testosterone complex loaded with Tribulus and Fenugreek to help your body produce testosterone naturally. With a 1500 mg Pro Testosterone complex Animal Stak is sure to kick your workouts up to the next level.

THE MOST COMPLETE ANABOLIC HORMONE STACK – With Testosterone Optimises, GH Support, Hormone Amplifiers, and Restorative Support, Animal Stak is the most complete hormone booster on the market all wrapped up in individual serving packs for your convenience.

There is no evidence that any of this is really true. There are no links to clinical evidence. Nothing is really proven to work in the way as described.

Does Universal Nutrition Animal Stak Work?

There is no real evidence that Animal Stak will work in the way as described and there is little in the way of real clinical testing into many of the individual ingredients.

In addition this product has never undergone any clinical testing and with the so-called unique formula of 27 ingredients, it is impossible to gauge whether all the components will work together or cause side effects. One customer had his blood tested following taking and found that his testosterone levels had actually reduced. That said there is positive customer feedback with some users very satisfied with this supplement.

What Are The Ingredients of Universal Nutrition Animal Stak?

There are 8 different pills for each serving of Animal Stak which you take together:

  • Vitamin D (1000 IU)
  • Vitamin B6(10.5mg)
  • Magnesium (450 mg)
  • Zinc (30 mg)
  • Pro Testosterone Complex with LJ100 (Tribulus Terrestis, Eurycoma Longifolia Powder, Longifolia Root Extract, Fenugreek Seed, Stinging Nettle, Maca Root Extract) 1500 mg: Tribulus Terrestis is a fruit often taken to improve sexual and exercise performance and some studies suggest that it may be effective. However it is dangerous and may cause numerous side effects including a possible link with prostate problems. Eurycoma Longifolia may help male infertility by improving sperm quality. It lacks real evidence that it will increase T levels in men. Research has been inconclusive and based on experiments carried out on rats.
  • Growth Hormone Support (Arginine Complex, Acetyl Carnitine, Mucuna Pruriens, L-Alanyl, L-Glutamine, Beef Serum, Albumin Concentrate, Alpha-Glycerylphosphorylcholine) 1500 mg: Human growth hormone is manufactured in the pituitary gland and is important for growth in children and adolescents. It is also produced synthetically and taken by people who wish to look younger and build more muscle. However there is not much proven evidence that plant and animal extracts will promote this function. Most testing has been carried out on rats and even though many of the ingredients in this capsule may have some benefit to protein absorption, there is zero proof it will work to increase the body’s supply of growth hormones.
  • Aromatase Combating Complex (Resveratrol, Calcium D-Glutamate, DIM) 300 mg: Aromatase inhibitors are used in medicine to treat breast cancer. Aromatase is the enzyme that produces oestrogen and medicine employs the use of some powerful chemicals such as Examestane and Tamoxifen to achieve this function. Di-Indole Methane (DIM) is a phyto nutrient found in some green vegetables and limited clinical testing suggests it may potentially enhance oestrogen metabolism.
  • Hormone Amplifying Blend (AgmaPure, GlycoCarn, AstaPure) 500 mg: L-Carnitine Fumerate, Agmatine Sulphate, Glycine Propionyl L-Carnitine, Quercetin, Astaxanthin, black pepper extract. This capsule contains three branded supplements. AgmaPure is a trademarked form of Agmatine sulphate which may help nitric oxide deliver so improve blood flow and muscle performance. GlycoCarn is another supplement that does much the same thing but is composed of amino acids. AstaPure is an Astaxanthin supplement. Astaxanthin is a carotenoid pigment with a powerful antioxidant function. All these supplements are available to buy separately and although they may help exercise performance there is no evidence they will ‘amplify hormones’ as suggested.
  • Restorative Support Complex (Milk Thistle Seed, Astralagus Root, Ashwaganda Extract, N-Alpha Lipoic Extract, Coenzyme Q10) 500 mg: This supplement is to help recovery post workout. Milk Thistle is believed to be effective for treating allergies, acid reflux and heartburn. It has a laxative effect and can cause side effects such as vomiting and nausea. Astralagus may help stimulate the immune system but can cause side effects. Likewise with Ashwaganda which is considered an adaptogen in that it causes general feelings of well-being but is known for side effects. It is a diuretic.

Does Universal Nutrition Animal Stak Have Any Side Effects?

Some of the capsules in this program may cause side effects. There are 27 ingredients in total and herbal extracts can be unpredictable. Despite the fact the customers have not mentioned any particular side effects, which are good; some of the ingredients can cause adverse reactions. These may include:

  • Cramps
  • Diarrhoea
  • Vomiting
  • Nausea
  • Bloating
  • Blood sugar levels variation
  • Increased urination
  • Allergic reaction
  • Acne

Not suitable for individuals under 18. Avoid if you are pregnant or breast feeding. Consult a health professional before use if you have an underlying medical condition or are taking prescription medication.

Are There Any Customer Reviews For Universal Nutrition Animal Stak?

There are customer reviews for Universal Nutrition Animal Stak. Some people were pleased with this supplement combo.

Positive comments include:

Love the stack. Have used it about once per year always with results. Gained muscle size and strength, with hard work in the gym, of course.

Good stuff. It helps me lean out while maintaining muscle mass. It’s not a miracle pill and it takes a few weeks to really notice a difference but it does seem to work for me. Best results after two cycles.

Good stuff, have used it on and off for years.

This all sounds good but not everyone is as satisfied.

Didn’t do a thing. There are claims that it makes you sleep better … nothing. You can drink water instead of taking so many pills every day.

I’ve noticed this always causing severe acne.

Animal Stak is absolutely worthless. You would be better off taking a sugar pill. I experienced absolutely nothing while taking this.

IMO placebo. Save your money.

As far as a mass and size enhancer it does nothing, but if you have the stomach to digest 5 packs (35 pills) it may give you a slight boost in energy.

We do not advise anyone to try this last option!

Does Universal Nutrition Animal Stak Offer a Money-Back Guarantee?

An ‘ironclad’ guarantee is advertised if you buy direct from the official website. Here’s what the company have to say about it:

If you bought a product from any of our retailers and it has not met with your tough requirements for any reason, we offer an industry-leading 30-day 100% “no-questions-asked” guarantee.

We think it is unlikely that Universal Nutrition will give you a refund on multiple packs so if you are dissatisfied, it is probably best to contact the company immediately after or during taking the first cycle of supplements.

Where Can I Buy Universal Nutrition Animal Stak?

You can buy Universal Nutrition Animal Stak direct from the Animal website. It is also on sale from Amazon. Although GNC stock Animal supplements, Animal Stak is not currently part of their range.

Summary: Universal Nutrition Animal Stak

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2.8 out of 5
Editor's Rating
  • Effectiveness
  • Safety
  • Price / Guarantee

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Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

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